Hepatitis B infection among adults in the philippines: A national seroprevalence study

Table 1 Prevalence of hepatitis B surface antigen positivity according to demographic characteristics n (%)

	HBsAg positive	95%CI	P value
All adults	2150 (16.7)	14.3-19.1
Sex			0.555
Females	1194 (16.0)	13.0-18.9
Males	956 (17.5)	14.1-20.8
Marital status1			0.177
Never married	261 (19.3)	13.6-25.0
Otherwise	1883 (16.0)	13.5-18.4
Educational attainment1			0.021
High school	1412 (18.6)	15.5-21.7
At least some tertiary	720 (14.6)	11.3-18.0
Employment status			0.189
Unemployed	1077 (15.4)	12.0-18.8
Employed	1073 (17.5)	14.4-20.7
Income1			0.003
Q1	484 (20.6)	13.2-18.4
Q2	564 (19.2)	14.6-23.8
Q3	566 (16.8)	12.1-21.5
Q4	502 (11.3)	7.0-15.6

¹Missing data. HBsAg: Hepatitis B surface antigen.